Machining Hardened Steel With Ceramic Inserts

Mccarthy recalls one shop owner who hesitated initially when confronted with the speeds hard turning calls for.

Machining hardened steel with ceramic inserts.

Al2o3 tic composite ceramic commonly known as black ceramic is suitable for machining hardened materials up to 65 hrc. There are so many different machining tasks that can be efficiently and economically solved with ceramtec s range of cutting materials and indexable inserts for workpieces made of cast iron steel hardened steel and special materials. To produce just one part the shop was using two carbide inserts indexing each one time four cutting points altogether. Pcbn polycrystalline cubic boron nitride is an advanced material that comes as a result of sintering micron cbn powders with various ceramics to create extremely hard and thermally stable cutting tools.

Applying ceramic inserts is not a simple substitution of one cutting tool material for another. Si3n4 silicon nitride inserts have high toughness and are suitable for machining cast iron generally grey in colour. Turning inserts and grades for hardened steel. Beyond 55 hrc are materials that include case hardened and most through hardened steels which require extra resistance to flank wear.

Turning hardened steel calls for super hard insert grades. Here s a look at some of the ways they are used. Parts made from these materials are typically case hardened requiring tools highly resistant to crater wear. Whatever your component or requirements for surface finish find productive insert grades here that can withstand high temperatures and cutting forces and still retain their cutting edges.

Its use behavior greatly influences the key machining parameters tool life cutting speed and surface quality. The shop was cutting 45 rc steel with carbide inserts on a three year old cnc lathe.